Typhoons Up Thames

If you're in London tomorrow, watch out for low-flying aircraft. No, this isn't a premature April Fool's gag. On Tuesday 1 April there'll be a 90th Anniversary Flypast in London to celebrate the birth of the Royal Air Force in 1918, when the Royal Flying Corps and the Royal Naval Air Service were merged at the end of World War One. For the first time the RAF Red Arrows will fly in formation along the River Thames, with four Typhoon aircraft, to pass the London Eye at 1pm. Don't blink or you'll miss them. These guys go like the clappers.